TY - JOUR
T1 - Nest-site fidelity in Lesser Kestrels
T2 - A case of Win-Stay/Lose-Shift?
AU - Ilan, Edith Katsnelson
AU - Bobek, Orli
AU - Gal, Adiv
AU - Saltz, David
AU - Motro, Uzi
N1 - Publisher Copyright:
© 2019 © 2019 by Koninklijke Brill NV, Leiden, The Netherlands.
PY - 2019
Y1 - 2019
N2 - We studied Lesser Kestrels' (Falco naumanni) conditional nest-site fidelity, i.e., fidelity that depends on the outcome of the previous nesting attempt in that site. In particular, we were interested in examining whether individual kestrels practice a Win-Stay/Lose-Shift (WSLS) strategy towards their nest-sites; that is, does the tendency to use the same nest-site increase following a successful nesting season, but decrease following a failure. For that purpose, we documented the use of nest-sites by Lesser Kestrels and the breeding success in these sites during 1998-2003 in the city of Jerusalem (Israel). We found that while Lesser Kestrels do not practice WSLS strategy towards their nest-site, the males (but not the females) do so towards their sub-colony-they tend to stay in the same sub-colony if their nesting was successful, whereas they tend to migrate to a different sub-colony after failure. A possible explanation to this sexual difference in WSLS behavior can arise from the fact that changing a sub-colony entails a change of hunting area. The male, being the main food provider in the Lesser Kestrel, may be more sensitive to this opportunity.
AB - We studied Lesser Kestrels' (Falco naumanni) conditional nest-site fidelity, i.e., fidelity that depends on the outcome of the previous nesting attempt in that site. In particular, we were interested in examining whether individual kestrels practice a Win-Stay/Lose-Shift (WSLS) strategy towards their nest-sites; that is, does the tendency to use the same nest-site increase following a successful nesting season, but decrease following a failure. For that purpose, we documented the use of nest-sites by Lesser Kestrels and the breeding success in these sites during 1998-2003 in the city of Jerusalem (Israel). We found that while Lesser Kestrels do not practice WSLS strategy towards their nest-site, the males (but not the females) do so towards their sub-colony-they tend to stay in the same sub-colony if their nesting was successful, whereas they tend to migrate to a different sub-colony after failure. A possible explanation to this sexual difference in WSLS behavior can arise from the fact that changing a sub-colony entails a change of hunting area. The male, being the main food provider in the Lesser Kestrel, may be more sensitive to this opportunity.
KW - Lesser Kestrel
UR - http://www.scopus.com/inward/record.url?scp=85075152588&partnerID=8YFLogxK
U2 - 10.1163/22244662-20191060
DO - 10.1163/22244662-20191060
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AN - SCOPUS:85075152588
SN - 1565-9801
VL - 65
SP - 106
EP - 110
JO - Israel Journal of Ecology and Evolution
JF - Israel Journal of Ecology and Evolution
IS - 3-4
ER -